A natural or synthetic substance used to add a colour to or change the colour of something
the cloth had been soaked in blue dye
Any of a large class of synthetic dyes whose molecules contain two adjacent nitrogen atoms between carbon atoms
Immerse (a yarn or fabric) in a special solution in order to colour it
Produce patterns in (a garment or piece of cloth) by tying parts of it to shield it from the dye
A dye which is applied in an acidic solution, the chromophore typically being an anionic species.
To dye (cloth) after it is woven.
A tunable laser using the fluorescence of an organic dye
A natural or synthetic substance used to change the colour of a person’s hair
Any of several mordant dyes having a nitroso group as the chromophore, which are obtained by the action of nitrous acid on phenols or naphthols.
A synthetic dye, especially one made from aniline
A dye which retains its colour for a long time, and will not quickly wash out or fade.
Any of various dyes obtained or manufactured from plants.
A water-insoluble dye, such as indigo, that is applied to a fabric in a reducing bath which converts it to a soluble form, the colour being obtained on subsequent oxidation in the fabric fibres
As an exclamation of sorrow or lamentation: ‘alas!’ Also preceded by ah or O. Now archaic and regional.
A substance yielding a dye or that can be used as a dye, especially when in solution
Any of a series of organic dyes produced by replacing the oxygen atom of one of the C=O groups of phthalic anhydride by two (substituted) phenyl groups. Frequently attributive, especially in phthalein dye.